Gauges 45-65-80-100. D'Addario ESXL170 Double Ball End Strings are compatible with all Steinberger and Steinberger-licensed copy basses including those with the Trans Trem system. D'Addario is the world's largest manufacturer of strings for musical instruments. Many top guitarists won't play any other brand. Regardless of your playing style, D'Addario has a set of strings that's right for your bass guitar.